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I have an Autometer tach mounted on the steering column. When I turn on the lights the tach goes dead. It work fine last year. I changed engines last week and had to unhook MSD and all but I thought I got it all plugged back in right. Thanks, Rick...
 

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Your tach wiring should be - White to dash lights - red to ignition - black to ground - green to MSD tach terminal. I run the white wire to a toggle switch then to the acc. terminal on the fuse block on my car
 

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Rick,
The biggest problem, according to Autometer, with tach installations, is the lack of a good ground. Autometer recommends grounding the tach to the intake manifold. The old sheet metal screw in the firewall is a no-no. I am relaying this from experience !


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Bill Koustenis
Advanced Automotive Machine
Waldorf Md
 
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